<!-- HTML header for doxygen 1.8.9.1-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.11"/>
<meta name="robots" content="NOINDEX, NOFOLLOW" /> <!-- Prevent indexing by search engines -->
<title>Compute Library: tests/validation/reference/HarrisCornerDetector.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
  $(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { init_search(); });
</script>
<script type="text/x-mathjax-config">
  MathJax.Hub.Config({
    extensions: ["tex2jax.js"],
    jax: ["input/TeX","output/HTML-CSS"],
});
</script><script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td style="padding-left: 0.5em;">
   <div id="projectname">Compute Library
   &#160;<span id="projectnumber">18.05</span>
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.11 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.xhtml"><span>Main&#160;Page</span></a></li>
      <li><a href="pages.xhtml"><span>Related&#160;Pages</span></a></li>
      <li><a href="namespaces.xhtml"><span>Namespaces</span></a></li>
      <li><a href="annotated.xhtml"><span>Data&#160;Structures</span></a></li>
      <li class="current"><a href="files.xhtml"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.xhtml"><span>File&#160;List</span></a></li>
      <li><a href="globals.xhtml"><span>Globals</span></a></li>
    </ul>
  </div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('_harris_corner_detector_8cpp_source.xhtml','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="headertitle">
<div class="title">HarrisCornerDetector.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<a href="_harris_corner_detector_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2017 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * deal in the Software without restriction, including without limitation the</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_harris_corner_detector_8h.xhtml">HarrisCornerDetector.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tests_2validation_2reference_2_utils_8h.xhtml">Utils.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tests_2validation_2_helpers_8h.xhtml">tests/validation/Helpers.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_non_maxima_suppression_8h.xhtml">tests/validation/reference/NonMaximaSuppression.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_sobel_8h.xhtml">tests/validation/reference/Sobel.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearm__compute.xhtml">arm_compute</a></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;{</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="keyword">namespace </span>test</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;{</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">namespace </span>validation</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;{</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">namespace </span>reference</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;{</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="keyword">namespace</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;std::tuple&lt;SimpleTensor&lt;T&gt;, SimpleTensor&lt;T&gt;, <span class="keywordtype">float</span>&gt; compute_sobel(<span class="keyword">const</span> SimpleTensor&lt;uint8_t&gt; &amp;<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a>, <span class="keywordtype">int</span> gradient_size, <span class="keywordtype">int</span> block_size, <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327">BorderMode</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">border_mode</a>, uint8_t constant_border_value)</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;{</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    SimpleTensor&lt;T&gt; grad_x;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    SimpleTensor&lt;T&gt; grad_y;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    <span class="keywordtype">float</span>           norm_factor = 0.f;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    std::tie(grad_x, grad_y) = sobel&lt;T&gt;(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a>, gradient_size, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">border_mode</a>, constant_border_value, <a class="code" href="namespacearm__compute.xhtml#ae46abc5ecac309cbece5c06cb80daaf7a5515a637eda61b978e97adaa5d7629cc">GradientDimension::GRAD_XY</a>);</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">switch</span>(gradient_size)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keywordflow">case</span> 3:</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            norm_factor = 1.f / (4 * 255 * block_size);</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            <span class="keywordflow">break</span>;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        <span class="keywordflow">case</span> 5:</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;            norm_factor = 1.f / (16 * 255 * block_size);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            <span class="keywordflow">break</span>;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        <span class="keywordflow">case</span> 7:</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            norm_factor = 1.f / (64 * 255 * block_size);</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;            <span class="keywordflow">break</span>;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="keywordflow">default</span>:</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            <a class="code" href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a>(<span class="stringliteral">&quot;Gradient size not supported.&quot;</span>);</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    }</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keywordflow">return</span> std::make_tuple(grad_x, grad_y, norm_factor);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;}</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;std::vector&lt;KeyPoint&gt; harris_corner_detector_impl(<span class="keyword">const</span> SimpleTensor&lt;U&gt; &amp;src, <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a6cae310822a46019ba25a00ddb0f7e62">threshold</a>, <span class="keywordtype">float</span> min_dist, <span class="keywordtype">float</span> sensitivity, <span class="keywordtype">int</span> gradient_size, <span class="keywordtype">int</span> block_size, <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327">BorderMode</a> border_mode,</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;                                                  U constant_border_value)</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;{</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(block_size != 3 &amp;&amp; block_size != 5 &amp;&amp; block_size != 7);</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    SimpleTensor&lt;T&gt; grad_x;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    SimpleTensor&lt;T&gt; grad_y;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keywordtype">float</span>           norm_factor = 0.f;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="comment">// Sobel</span></div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    std::tie(grad_x, grad_y, norm_factor) = compute_sobel&lt;T&gt;(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a>, gradient_size, block_size, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">border_mode</a>, constant_border_value);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    SimpleTensor&lt;float&gt; scores(src.shape(), <a class="code" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a44ad4ef5a76e6aa6fb3e3fa079a54fda">DataType::F32</a>);</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    ValidRegion         scores_region = <a class="code" href="namespacearm__compute_1_1test.xhtml#a8103df0e6c416f55f40106aa49072b42">shape_to_valid_region</a>(scores.shape(), border_mode == <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3">BorderMode::UNDEFINED</a>, BorderSize(gradient_size / 2 + block_size / 2));</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="comment">// Calculate scores</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; scores.num_elements(); ++i)</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    {</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        Coordinates src_coord = <a class="code" href="namespacearm__compute_1_1test.xhtml#a24d8c0391cfa38e78969b6ad97c0ff09">index2coord</a>(src.shape(), i);</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        Coordinates block_top_left{ src_coord.<a class="code" href="classarm__compute_1_1_dimensions.xhtml#afb5cd37bb08f1029691590372e6330f0">x</a>() - block_size / 2, src_coord.y() - block_size / 2 };</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        Coordinates block_bottom_right{ src_coord.x() + block_size / 2, src_coord.y() + block_size / 2 };</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keywordflow">if</span>(!<a class="code" href="namespacearm__compute_1_1test.xhtml#a856b55fc20ddcbdbeb84c35ae27bedac">is_in_valid_region</a>(scores_region, src_coord))</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        {</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            scores[i] = 0.f;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        }</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keywordtype">float</span> Gx2 = 0.f;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        <span class="keywordtype">float</span> Gy2 = 0.f;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <span class="keywordtype">float</span> Gxy = 0.f;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        <span class="comment">// Calculate Gx^2, Gy^2 and Gxy within the given window</span></div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">int</span> y = block_top_left.y(); y &lt;= block_bottom_right.y(); ++y)</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        {</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            <span class="keywordflow">for</span>(<span class="keywordtype">int</span> x = block_top_left.x(); x &lt;= block_bottom_right.x(); ++x)</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            {</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                Coordinates block_coord(x, y);</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">float</span> norm_x = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a4f489943d8618d47b1ad4611f0b9b7ff">tensor_elem_at</a>(grad_x, block_coord, border_mode, static_cast&lt;T&gt;(constant_border_value)) * norm_factor;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">float</span> norm_y = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a4f489943d8618d47b1ad4611f0b9b7ff">tensor_elem_at</a>(grad_y, block_coord, border_mode, static_cast&lt;T&gt;(constant_border_value)) * norm_factor;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                Gx2 += <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(norm_x, 2);</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                Gy2 += <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(norm_y, 2);</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;                Gxy += norm_x * norm_y;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;            }</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        }</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">float</span> trace2   = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(Gx2 + Gy2, 2);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">float</span> det      = Gx2 * Gy2 - <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(Gxy, 2);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">float</span> response = det - sensitivity * trace2;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="keywordflow">if</span>(response &gt; threshold)</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        {</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;            scores[i] = response;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;        }</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        <span class="keywordflow">else</span></div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        {</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            scores[i] = 0.f;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        }</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    }</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="comment">// Suppress non-maxima candidates</span></div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    SimpleTensor&lt;float&gt; suppressed_scores        = <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a60e89e48713565425943913adec65294">non_maxima_suppression</a>(scores, border_mode != <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3">BorderMode::UNDEFINED</a> ? <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a8d6b5cada83510220f59e00ce86d4d92">BorderMode::CONSTANT</a> : <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3">BorderMode::UNDEFINED</a>, 0.f);</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    ValidRegion         suppressed_scores_region = <a class="code" href="namespacearm__compute_1_1test.xhtml#a8103df0e6c416f55f40106aa49072b42">shape_to_valid_region</a>(suppressed_scores.shape(), border_mode == <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3">BorderMode::UNDEFINED</a>, BorderSize(gradient_size / 2 + block_size / 2 + 1));</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="comment">// Create vector of candidate corners</span></div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    std::vector&lt;KeyPoint&gt; corner_candidates;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; suppressed_scores.num_elements(); ++i)</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    {</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        Coordinates coord = <a class="code" href="namespacearm__compute_1_1test.xhtml#a24d8c0391cfa38e78969b6ad97c0ff09">index2coord</a>(suppressed_scores.shape(), i);</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        <span class="keywordflow">if</span>(<a class="code" href="namespacearm__compute_1_1test.xhtml#a856b55fc20ddcbdbeb84c35ae27bedac">is_in_valid_region</a>(suppressed_scores_region, coord) &amp;&amp; suppressed_scores[i] != 0.f)</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        {</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;            KeyPoint corner;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;            corner.<a class="code" href="classarm__compute_1_1_dimensions.xhtml#afb5cd37bb08f1029691590372e6330f0">x</a>               = coord.x();</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            corner.y               = coord.y();</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;            corner.tracking_status = 1;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;            corner.strength        = suppressed_scores[i];</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;            corner.scale           = 0.f;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            corner.orientation     = 0.f;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            corner.error           = 0.f;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;            corner_candidates.emplace_back(corner);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        }</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    }</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="comment">// Sort descending by strength</span></div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    std::sort(corner_candidates.begin(), corner_candidates.end(), [](<span class="keyword">const</span> KeyPoint &amp; <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#aac40b7097f2bda9274ae07fa33d15a79">a</a>, <span class="keyword">const</span> KeyPoint &amp; <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a7b8004eef325a40dd43eb80755610fff">b</a>)</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    {</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        <span class="keywordflow">return</span> a.strength &gt; <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a7b8004eef325a40dd43eb80755610fff">b</a>.strength;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    });</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    std::vector&lt;KeyPoint&gt; corners;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    corners.reserve(corner_candidates.size());</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    <span class="comment">// Only add corner if there is no stronger within min_dist</span></div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keywordflow">for</span>(<span class="keyword">const</span> KeyPoint &amp;point : corner_candidates)</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    {</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;        <span class="keyword">const</span> <span class="keyword">auto</span> strongest = std::find_if(corners.begin(), corners.end(), [&amp;](<span class="keyword">const</span> KeyPoint &amp; other)</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;        {</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;            <span class="keywordflow">return</span> std::sqrt((<a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(point.x - other.x, 2) + <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">std::pow</a>(point.y - other.y, 2))) &lt; min_dist;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        });</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;        <span class="keywordflow">if</span>(strongest == corners.end())</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;        {</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;            corners.emplace_back(point);</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;        }</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    }</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    corners.shrink_to_fit();</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    <span class="keywordflow">return</span> corners;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;}</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;} <span class="comment">// namespace</span></div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#adc64cfa88bef3958e1603bfca23db47a">  187</a></span>&#160;std::vector&lt;KeyPoint&gt; <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#adc64cfa88bef3958e1603bfca23db47a">harris_corner_detector</a>(<span class="keyword">const</span> SimpleTensor&lt;T&gt; &amp;src, <span class="keywordtype">float</span> threshold, <span class="keywordtype">float</span> min_dist, <span class="keywordtype">float</span> sensitivity, <span class="keywordtype">int</span> gradient_size, <span class="keywordtype">int</span> block_size, <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327">BorderMode</a> border_mode,</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;                                             T constant_border_value)</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;{</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    <span class="keywordflow">if</span>(gradient_size &lt; 7)</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    {</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        <span class="keywordflow">return</span> harris_corner_detector_impl&lt;int16_t&gt;(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a>, <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a6cae310822a46019ba25a00ddb0f7e62">threshold</a>, min_dist, sensitivity, gradient_size, block_size, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">border_mode</a>, constant_border_value);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    }</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    {</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        <span class="keywordflow">return</span> harris_corner_detector_impl&lt;int32_t&gt;(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a>, <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a6cae310822a46019ba25a00ddb0f7e62">threshold</a>, min_dist, sensitivity, gradient_size, block_size, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">border_mode</a>, constant_border_value);</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    }</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;}</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="keyword">template</span> std::vector&lt;KeyPoint&gt; <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#adc64cfa88bef3958e1603bfca23db47a">harris_corner_detector</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1test_1_1_simple_tensor.xhtml">SimpleTensor&lt;uint8_t&gt;</a> &amp;src, <span class="keywordtype">float</span> threshold, <span class="keywordtype">float</span> min_dist, <span class="keywordtype">float</span> sensitivity, <span class="keywordtype">int</span> gradient_size, <span class="keywordtype">int</span> block_size, <a class="code" href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327">BorderMode</a> border_mode,</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;                                                      uint8_t constant_border_value);</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;} <span class="comment">// namespace reference</span></div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;} <span class="comment">// namespace validation</span></div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;} <span class="comment">// namespace test</span></div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;} <span class="comment">// namespace arm_compute</span></div><div class="ttc" id="namespacearm__compute_xhtml_a15a05537a472ee742404821851529327"><div class="ttname"><a href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327">arm_compute::BorderMode</a></div><div class="ttdeci">BorderMode</div><div class="ttdoc">Methods available to handle borders. </div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l00283">Types.h:283</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a05b19c75afe9c24200a62b9724734bbd"><div class="ttname"><a href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR(...)</div><div class="ttdoc">Print the given message then throw an std::runtime_error. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00260">Error.h:260</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a4f489943d8618d47b1ad4611f0b9b7ff"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a4f489943d8618d47b1ad4611f0b9b7ff">arm_compute::test::validation::tensor_elem_at</a></div><div class="ttdeci">T tensor_elem_at(const SimpleTensor&lt; T &gt; &amp;src, Coordinates coord, BorderMode border_mode, T constant_border_value)</div><div class="ttdef"><b>Definition:</b> <a href="tests_2validation_2reference_2_utils_8h_source.xhtml#l00061">Utils.h:61</a></div></div>
<div class="ttc" id="tests_2validation_2reference_2_utils_8h_xhtml"><div class="ttname"><a href="tests_2validation_2reference_2_utils_8h.xhtml">Utils.h</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_aac40b7097f2bda9274ae07fa33d15a79"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#aac40b7097f2bda9274ae07fa33d15a79">arm_compute::test::validation::a</a></div><div class="ttdeci">CLTensor a</div><div class="ttdef"><b>Definition:</b> <a href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00121">GEMM.cpp:121</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ab4e88c89b3b7ea1735996cc4def22d58a44ad4ef5a76e6aa6fb3e3fa079a54fda"><div class="ttname"><a href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a44ad4ef5a76e6aa6fb3e3fa079a54fda">arm_compute::Format::F32</a></div><div class="ttdoc">1 channel, 1 F32 per channel </div></div>
<div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00328">Error.h:328</a></div></div>
<div class="ttc" id="tests_2validation_2_helpers_8h_xhtml"><div class="ttname"><a href="tests_2validation_2_helpers_8h.xhtml">Helpers.h</a></div></div>
<div class="ttc" id="_sobel_8h_xhtml"><div class="ttname"><a href="_sobel_8h.xhtml">Sobel.h</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml"><div class="ttname"><a href="namespacearm__compute.xhtml">arm_compute</a></div><div class="ttdoc">This file contains all available output stages for GEMMLowp on OpenCL. </div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00001">00_introduction.dox:1</a></div></div>
<div class="ttc" id="_non_maxima_suppression_8h_xhtml"><div class="ttname"><a href="_non_maxima_suppression_8h.xhtml">NonMaximaSuppression.h</a></div></div>
<div class="ttc" id="classarm__compute_1_1_dimensions_xhtml_afb5cd37bb08f1029691590372e6330f0"><div class="ttname"><a href="classarm__compute_1_1_dimensions.xhtml#afb5cd37bb08f1029691590372e6330f0">arm_compute::Dimensions::x</a></div><div class="ttdeci">T x() const </div><div class="ttdoc">Alias to access the size of the first dimension. </div><div class="ttdef"><b>Definition:</b> <a href="_dimensions_8h_source.xhtml#l00081">Dimensions.h:81</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a5471e46933e7a9c4709972d91fc4ea65"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a5471e46933e7a9c4709972d91fc4ea65">arm_compute::test::validation::border_mode</a></div><div class="ttdeci">border_mode</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_convolution_8cpp_source.xhtml#l00133">Convolution.cpp:133</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_xhtml_a856b55fc20ddcbdbeb84c35ae27bedac"><div class="ttname"><a href="namespacearm__compute_1_1test.xhtml#a856b55fc20ddcbdbeb84c35ae27bedac">arm_compute::test::is_in_valid_region</a></div><div class="ttdeci">bool is_in_valid_region(const ValidRegion &amp;valid_region, Coordinates coord)</div><div class="ttdoc">Check if a coordinate is within a valid region. </div><div class="ttdef"><b>Definition:</b> <a href="tests_2_utils_8h_source.xhtml#l00466">Utils.h:466</a></div></div>
<div class="ttc" id="_harris_corner_detector_8h_xhtml"><div class="ttname"><a href="_harris_corner_detector_8h.xhtml">HarrisCornerDetector.h</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_xhtml_a24d8c0391cfa38e78969b6ad97c0ff09"><div class="ttname"><a href="namespacearm__compute_1_1test.xhtml#a24d8c0391cfa38e78969b6ad97c0ff09">arm_compute::test::index2coord</a></div><div class="ttdeci">Coordinates index2coord(const TensorShape &amp;shape, int index)</div><div class="ttdoc">Convert a linear index into n-dimensional coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="tests_2_utils_8h_source.xhtml#l00419">Utils.h:419</a></div></div>
<div class="ttc" id="classarm__compute_1_1test_1_1_simple_tensor_xhtml"><div class="ttname"><a href="classarm__compute_1_1test_1_1_simple_tensor.xhtml">arm_compute::test::SimpleTensor&lt; uint8_t &gt;</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ae46abc5ecac309cbece5c06cb80daaf7a5515a637eda61b978e97adaa5d7629cc"><div class="ttname"><a href="namespacearm__compute.xhtml#ae46abc5ecac309cbece5c06cb80daaf7a5515a637eda61b978e97adaa5d7629cc">arm_compute::GradientDimension::GRAD_XY</a></div><div class="ttdoc">x and y gradient dimension </div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_1_1reference_xhtml_adc64cfa88bef3958e1603bfca23db47a"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#adc64cfa88bef3958e1603bfca23db47a">arm_compute::test::validation::reference::harris_corner_detector</a></div><div class="ttdeci">std::vector&lt; KeyPoint &gt; harris_corner_detector(const SimpleTensor&lt; T &gt; &amp;src, float threshold, float min_dist, float sensitivity, int gradient_size, int block_size, BorderMode border_mode, T constant_border_value)</div><div class="ttdef"><b>Definition:</b> <a href="_harris_corner_detector_8cpp_source.xhtml#l00187">HarrisCornerDetector.cpp:187</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_1_1reference_xhtml_a60e89e48713565425943913adec65294"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a60e89e48713565425943913adec65294">arm_compute::test::validation::reference::non_maxima_suppression</a></div><div class="ttdeci">SimpleTensor&lt; T &gt; non_maxima_suppression(const SimpleTensor&lt; T &gt; &amp;src, BorderMode border_mode, T constant_border_value)</div><div class="ttdef"><b>Definition:</b> <a href="_non_maxima_suppression_8cpp_source.xhtml#l00038">NonMaximaSuppression.cpp:38</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3"><div class="ttname"><a href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a0db45d2a4141101bdfe48e3314cfbca3">arm_compute::BorderMode::UNDEFINED</a></div><div class="ttdoc">Borders are left undefined. </div></div>
<div class="ttc" id="namespacearm__compute_xhtml_a15a05537a472ee742404821851529327a8d6b5cada83510220f59e00ce86d4d92"><div class="ttname"><a href="namespacearm__compute.xhtml#a15a05537a472ee742404821851529327a8d6b5cada83510220f59e00ce86d4d92">arm_compute::BorderMode::CONSTANT</a></div><div class="ttdoc">Pixels outside the image are assumed to have a constant value. </div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail_xhtml_af782da2c5016738c96c16fee5e17670f"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#af782da2c5016738c96c16fee5e17670f">arm_compute::test::fixed_point_arithmetic::detail::pow</a></div><div class="ttdeci">fixed_point&lt; T &gt; pow(fixed_point&lt; T &gt; x, fixed_point&lt; T &gt; a)</div><div class="ttdef"><b>Definition:</b> <a href="tests_2validation_2_fixed_point_8h_source.xhtml#l00957">FixedPoint.h:957</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a7b8004eef325a40dd43eb80755610fff"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a7b8004eef325a40dd43eb80755610fff">arm_compute::test::validation::b</a></div><div class="ttdeci">CLTensor b</div><div class="ttdef"><b>Definition:</b> <a href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00122">GEMM.cpp:122</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_1_1reference_xhtml_a6cae310822a46019ba25a00ddb0f7e62"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a6cae310822a46019ba25a00ddb0f7e62">arm_compute::test::validation::reference::threshold</a></div><div class="ttdeci">SimpleTensor&lt; T &gt; threshold(const SimpleTensor&lt; T &gt; &amp;src, T threshold, T false_value, T true_value, ThresholdType type, T upper)</div><div class="ttdef"><b>Definition:</b> <a href="reference_2_threshold_8cpp_source.xhtml#l00035">Threshold.cpp:35</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a6743f0a130e8311e6f5b1a23df102472"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">arm_compute::test::validation::src</a></div><div class="ttdeci">convolution configure &amp; src</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_convolution_8cpp_source.xhtml#l00147">Convolution.cpp:147</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_xhtml_a8103df0e6c416f55f40106aa49072b42"><div class="ttname"><a href="namespacearm__compute_1_1test.xhtml#a8103df0e6c416f55f40106aa49072b42">arm_compute::test::shape_to_valid_region</a></div><div class="ttdeci">ValidRegion shape_to_valid_region(const TensorShape &amp;a_shape, bool border_undefined=false, BorderSize border_size=BorderSize(0))</div><div class="ttdoc">Create a valid region based on tensor shape, border mode and border size. </div><div class="ttdef"><b>Definition:</b> <a href="tests_2_utils_8h_source.xhtml#l00222">Utils.h:222</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_59425e443f801f1f2fd8bbe4959a3ccf.xhtml">tests</a></li><li class="navelem"><a class="el" href="dir_e7c7b16542faa38cb4655ff1750d3604.xhtml">validation</a></li><li class="navelem"><a class="el" href="dir_46fdb196cebdbffe77dac340cde62f29.xhtml">reference</a></li><li class="navelem"><a class="el" href="_harris_corner_detector_8cpp.xhtml">HarrisCornerDetector.cpp</a></li>
    <li class="footer">Generated on Wed May 23 2018 11:36:38 for Compute Library by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
  </ul>
</div>
</body>
</html>
